20451627

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6907}}^1$

素因数の和:6967

約数の個数: 24

約数和(自身を含む): 34484736

約数和(自身を除く): 14033109

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6907, 20721, 48349, 62163, 145047, 324629, 435141, 973887, 2272403, 2921661, 6817209, 20451627]

約数ペア:

[(1, 20451627), (3, 6817209), (7, 2921661), (9, 2272403), (21, 973887), (47, 435141), (63, 324629), (141, 145047), (329, 62163), (423, 48349), (987, 20721), (2961, 6907)]